tests/compiler/dart2js/lookup_member_test.dart

// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

library lookup_member_test;

import 'package:expect/expect.dart';
import "package:async_helper/async_helper.dart";
import 'type_test_helper.dart';
import 'package:compiler/src/elements/resolution_types.dart';
import "package:compiler/src/elements/elements.dart"
    show ClassElement, MemberSignature;
import "package:compiler/src/elements/names.dart";

void main() {
  test();
}

void test() {
  asyncTest(() => TypeEnvironment.create(r"""
      class A<T> {
        T foo;
      }
      class B<S> extends A<A<S>> {
        S bar;
      }
      class C<U> extends B<String> with D<B<U>> {
        U baz;
      }
      class D<V> {
        V boz;
      }
      """).then((env) {
        void expect(ResolutionInterfaceType receiverType, String memberName,
            ResolutionDartType expectedType) {
          MemberSignature member =
              receiverType.lookupInterfaceMember(new PublicName(memberName));
          Expect.isNotNull(member);
          ResolutionDartType memberType = member.type;
          Expect.equals(expectedType, memberType,
              'Wrong member type for $receiverType.$memberName.');
        }

        ResolutionDartType int_ = env['int'];
        ResolutionDartType String_ = env['String'];

        ClassElement A = env.getElement('A');
        ResolutionDartType T = A.typeVariables.first;
        ResolutionDartType A_T = A.thisType;
        expect(A_T, 'foo', T);

        ResolutionDartType A_int = instantiate(A, [int_]);
        expect(A_int, 'foo', int_);

        ClassElement B = env.getElement('B');
        ResolutionDartType S = B.typeVariables.first;
        ResolutionDartType B_S = B.thisType;
        expect(B_S, 'foo', instantiate(A, [S]));
        expect(B_S, 'bar', S);

        ResolutionDartType B_int = instantiate(B, [int_]);
        expect(B_int, 'foo', A_int);
        expect(B_int, 'bar', int_);

        ClassElement C = env.getElement('C');
        ResolutionDartType U = C.typeVariables.first;
        ResolutionDartType C_U = C.thisType;
        expect(C_U, 'foo', instantiate(A, [String_]));
        expect(C_U, 'bar', String_);
        expect(C_U, 'baz', U);
        expect(C_U, 'boz', instantiate(B, [U]));

        ResolutionDartType C_int = instantiate(C, [int_]);
        expect(C_int, 'foo', instantiate(A, [String_]));
        expect(C_int, 'bar', String_);
        expect(C_int, 'baz', int_);
        expect(C_int, 'boz', instantiate(B, [int_]));
      }));
}